Must run flutter clean before building when iOS app has watch extension, Failed to extract arm64 for .../PlugIns/WatchApp.appex/Frameworks #60351
Description
Problem
Must run flutter clean between every build (run/debug) when app includes a WKExtension.
Seems like flutter uses the same "active architecture" for Apple Watch as it does for iPhone.
That in turn causes flutter to try extract the wrong architecture when building app for debug/run on device.
Steps to Reproduce
- Run
flutter create bug. - Add a watch extension (https://flutter.dev/docs/development/platform-integration/apple-watch
- Add a pod for your watch extension target (I use
pod 'EFQRCode/watchOS', '~> 5.1.6', but any pod will do) - Run your app on an iPhone or iOS simulator.
- Stop debug/run session after app has installed and launched on device/simulator.
- Again, run your app on an iPhone or iOS simulator.
Expected results:
App launches.
Actual results:
Build error.
Logs
Flutter.framework/_CodeSignature/CodeResources
sent 98388907 bytes received 120 bytes 65592684.67 bytes/sec
total size is 98376483 speedup is 1.00
PATH/TO/BUILD/Runner.app/Frameworks/App.framework/App: signed bundle with Mach-O universal (x86_64 arm64) [io.flutter.flutter.app]
PATH/TO/BUILD/Runner.app/Frameworks/Flutter.framework/Flutter: replacing existing signature
PATH/TO/BUILD/Runner.app/Frameworks/Flutter.framework/Flutter: signed bundle with Mach-O universal (armv7 x86_64 arm64) [io.flutter.flutter]
fatal error: lipo: -extract arm64 specified but fat file: PATH/TO/BUILD/Runner.app/Watch/APP_NAME.app/PlugIns/WatchApp_staging Extension.appex/Frameworks/EFQRCode.framework/EFQRCode does not contain that architecture
Failed to extract arm64 for PATH/TO/BUILD/Runner.app/Watch/APP_NAME.app/PlugIns/WatchApp_staging Extension.appex/Frameworks/EFQRCode.framework/EFQRCode. Running lipo -info:
Architectures in the fat file: PATH/TO/BUILD/Runner.app/Watch/APP_NAME.app/PlugIns/WatchApp_staging Extension.appex/Frameworks/EFQRCode.framework/EFQRCode are: armv7k arm64_32
Command PhaseScriptExecution failed with a nonzero exit code
note: Using new build system
note: Building targets in parallel
note: Planning build
note: Constructing build description
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